Amino acids are vital substances that are mostly ingested through food. There are hundreds of different amino acids, but in terms of diet and nutrition, there are only 22 you need to be concerned with. Collectively amino acids are used to support nearly every physiological function, including muscle growth and athletic endurance.
Dietary amino acids
The 22 amino acids that relate to diet and nutrition are called "standard amino acids." They're subdivided further into two groups: essential and nonessential.
Essential amino acids
There are nine essential amino acids. These must be taken in through food or supplementation since the body has no means of synthesizing them. They are:
| Essential amino acid | How it works |
|---|---|
| Histidine | Supports the central nervous and digestive systems.[1] |
| Isoleucine* | Promotes the use of glucose and protein by the muscles during exercise, and regulates blood sugar levels.[2] |
| Leucine* | Mostly used for protein synthesis in muscle tissues, but also improves glucose uptake and is necessary to form blood cells.[3] This is our favorite amino acid due to its muscle-building and endurance-boosting effects. |
| Valine* | Converts fatty acids to energy and helps the digestive system absorb calcium.[4] |
| Lysine | Converts fatty acids to energy and helps the digestive system absorb calcium.[4] |
| Methionine | Very important to kidney cells, methionine is also a precursor of creatine, taurine, and lecithin.[5] |
| Phenylalanine | Helps to regulate mood and cognitive function.[6] |
| Threonine | Needed to form collagen and tooth enamel, it also supports the immune system.[7] |
| Tryptophan | While it's probably most familiar as a sleep aid, tryptophan is also a precursor for the synthesis of auxin, niacin, and serotonin. It is also needed to regulate nitrogen levels.[8] |
*Also known as branched-chain amino acids (BCAAs).
Nonessential amino acids
The remaining 13 amino acids are considered "nonessential" as the body can synthesize them from other sources. Serine
| Essential amino acid | How it works | |
|---|---|---|
| Alanine | Used to form glucose in the liver, it's also needed for sugar and acid digestion and for immune system support.[10] | |
| Arginine | A necessary precursor for the nitric oxide synthesis, helps in both tissue and bone repair, supports the immune system, and removes ammonia from the body.[11] | |
| Asparagine | Aids in metabolic control of cell functions in nerve and brain tissue.[12] | |
| Aspartic acid | Is thought to be a neurotransmitter, but research is not yet conclusive.[13] | |
| Cysteine | A precursor to glutamic acid, glycine, and sulfide.[14] | |
| Glutamic acid | Necessary for metabolic function, removal of excess nitrogen and is the most common neurotransmitter in the body.[15] | |
| Glutamine | Needed for protein synthesis, pH balance in the kidneys, cellular energy, and as a transporter of nitrogen, carbon, and ammonia.[16] | |
| Glycine | Needed to digest proteins and is a common neurotransmitter.[17] | |
| Ornithine | Necessary to support the urea cycle and may also play a role in reducing the feeling of fatigue.[18] | |
| Proline | Needed for regular joint and tendon function and also for the formation of collagen.[19] | |
| Selenocysteine | Serves the same functions as cysteine but also plays a role in protein synthesis.[20] | |
| Serine | Needed for metabolic function and also functions as a neurotransmitter.[21] | |
| Tyrosine | Needed to synthesize melanin, epinephrine, and thyroid hormones.[22]td> |
Supplementation
There are hundreds of different amino acids, but in terms of diet and nutrition, only 22 you need to be concerned with.
As far as diet goes, supplementation with essential amino acids is generally only necessary for certain medical conditions or to support a vegetarian/vegan diet.
The BCAAs can help to promote muscle growth and speed recovery, however, so you'll frequently see them included in pre-workout formulas and protein mixes. Supplements that emphasize BCAAs are usually formulated in a ratio that expresses how much relative leucine, isoleucine, and valine they have. For example, one common formulation you'll see in supplements is leucine in a 2:1:1 ratio. This simply means there's twice as much leucine as there are the other two BCAAs.
Glutamine is frequently featured in supplements under the claim that it is a vital muscle fuel source that is depleted by exercise. It's still unclear whether glutamine supplementation before or during a workout has any effect on muscle performance, however. Two placebo studies found no effect of glutamine supplementation whatsoever in weightlifting tests.[23,24] However, a study of long-distance runners found that glutamine seemed to bolster their strained immune systems after a marathon run.[25]
Beta-alanine is a useful supplement for upping the intensity of your workout. It increases the availability of carnosine to muscle tissue. Carnosine regulates the pH balance of muscles by scooping up the hydrogen ions generated when they're in use, and this amounts to a boost in both muscle output and endurance. While there's no studies that have shown carnosine to directly influence the growth of muscles, supplementation does allow for longer sets at higher intensity. Concurrent carnosine supplementation is necessary to see this benefit, though - beta-alanine alone doesn't have any particular effect.
The L-carnitine family provides energy at a cellular level. It's made up of several sub-compounds that have different beneficial effects. Acetyl L-carnitine (ALCAR) is a neurotransmitter that improves cognitive function and reduces feelings of fatigue. Propionyl-L-carnitine (PLCAR) has been shown in rat studies to promote the burning of fat as energy to support working muscle tissue. L-carnitine L-tartrate is an antioxidant that eases soreness after exercise. And glycine propionyl-L-carnitine (GPLC) improves blood flow and oxygen delivery to muscle tissue.
Food sources
Both the essential and the non-essential amino acids are found in foods that are rich in protein.
If you're meeting your overall daily nutritional requirements for protein and carbohydrates, your body will be able to synthesize all of the non-essential amino acids that it needs.
Meat, eggs, poultry, and fish are the best complete sources of the nine essential amino acids. Beans are also good sources, particularly pinto, kidney, and soy. A number of vegetables do contain complete proteins, but in much smaller amounts than other food sources.
Where to buy
You can find amino acid supplements here at PricePlow at 30% to 50% off of retail prices. We typically enjoy powdered-based formulas more, especially for workouts, since they are more convenient, tastier, and typically cost less per gram.
References
- PubChem; "Histidine;" 2014
- PubChem; "Isoleucine;" 2014
- PubChem; "Leucine;" 2014
- PubChem; "Lysine;" 2014
- PubChem; "Methionine;" 2014
- PubChem; "Phenylalanine;" 2014
- PubChem; "Threonine;" 2014
- PubChem; "Tryptophan;" 2014
- PubChem; "Valine;" 2014
- PubChem; "Alanine;" 2014
- PubChem; "Arginine;" 2014
- PubChem; "Asparagine;" 2014
- PubChem; "Aspartic Acid;" 2014
- PubChem; "Cysteine;" 2014
- PubChem; "Glutamic Acid;" 2014
- PubChem; "Glutamine;" 2014
- PubChem; "Glycine;" 2014
- PubChem; "Ornithine;" 2014
- PubChem; "Proline;" 2014
- PubChem; "Selenocysteine;" 2014
- PubChem; "Serine;" 2014
- PubChem; "Tyrosine" 2014
- Candow, D, et. al; European Journal of Applied Physiology; "Effect of glutamine supplementation combined with resistance training in young adults;" December 2001
- Antonio, J, et. al; Journal of Strength and Conditioning Research; "The effects of high-dose glutamine ingestion on weightlifting performance;" February 2002
- Castell, L, et. al; Nutrition; "The effects of oral glutamine supplementation on athletes after prolonged, exhaustive exercise;" July 1997
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Musclesport offers Miami Sunrise flavor for Amino +Hydration and Creatine +Hydration. Tropical pineapple, orange and cherry notes for your summer training. -
Apr 25, 2025 
Blog Post
MalTor™: The Performance-Enhancing Taurine-Malic Acid Complex for Mitochondrial Recovery
MalTor combines taurine and L-malic acid to enhance recovery, reduce muscle soreness and support mitochondrial function based on clinical research. -
Apr 25, 2025 
Product News
AllMax Nutrition Arginine HCI was created.
Category: L-Arginine -
Apr 23, 2025 
Blog Post
Muscle Preservation Simplified: The Vitamin Shoppe's GLP-1 Support Protein with myHMB
The Vitamin Shoppe GLP-1 Support Protein with myHMB helps maintain muscle during weight loss journeys with 30g protein and muscle-preserving ingredients. -
Apr 21, 2025 
YouTube Video
Dileucine (DL185) Now Available at Unmatched Supplements -- Pure Muscle-Building Peptide #muscle -
Apr 21, 2025 
Product News
Kaged Intra-Workout was created.
Category: Intra Workout -
Apr 18, 2025 
YouTube Video
Setria Glutathione + PureWay-C Powers GHOST BASICS Antioxidant Formula #antioxidants #supplements -
Apr 18, 2025 
YouTube Video
Podium FUSE 2025 -- NEW & IMPROVED Pre-Workout Formula #FUSE2025 #supplements #preworkout #fitness -
Apr 17, 2025 
Product News
Life Extension GABA was created.
Category: GABA -
Apr 16, 2025 
YouTube Video
Fresh Supps Creatine/HMB: Build AND Protect Muscle in Candy-Inspired Flavors #creatine #hmb #muscle -
Apr 16, 2025 
YouTube Video
Reducing Malondialdehyde: Is Aldehyde Overload a Major Health Epidemic, and Can Cognizin Help? -
Apr 16, 2025 
Blog Post
Fresh Supps Creatine/HMB: Dual-Action Muscle Builder in Candy Shop Flavors!
Fresh Supps combines 5g creatine monohydrate with 1500mg calcium HMB in three delicious flavors for enhanced muscle building and reduced breakdown. -
Apr 15, 2025 
YouTube Video
PEScience Versa Energy Drink -- Perfect 125mg Caffeine #energydrink #drinkversa #supplements #focus -
Apr 14, 2025 
YouTube Video
GRAPE GAINZ Are Here! New MuscleTech EuphoriQ V2 Pre Flavor -
Apr 14, 2025 
YouTube Video
MitoPrime Ergothioneine: The Longevity Vitamin Backed By 3 Major Scientific Studies #healthspan -
Apr 12, 2025 
Product News
Xymogen L-Glutamine Powder was created.
Category: Glutamine Powder -
Apr 12, 2025 
Product News
Xymogen XymoBolX was created.
Category: Amino Acids -
Apr 12, 2025 
Product News
Xymogen S-Acetyl Glutathione was created.
Category: Glutathione -
Apr 12, 2025 
Product News
Xymogen L-Lysine was created.
Category: Lysine -
Apr 11, 2025 
Product News
Xymogen NAC (N-Acety L-Cysteine) was created.
Category: N-Acetyl-Cysteine -
Apr 10, 2025 
YouTube Video
Big Things Can Come in Little Sizes | NNB's MitoPrime + NutriScience's SalidroPure! #supplements -
Apr 09, 2025 
YouTube Video
New Cognizin and Setria Research Coming: Kyowa Hakko's Katie Emerson & Tony Miano | Episode 163 -
Apr 09, 2025 
Blog Post
Kyowa Hakko's Katie Emerson & Tony Miano: Setria Glutathione & Cognizin Research Updates | Episode #163
Katie Emerson & Tony Miano discuss Kyowa Hakko's latest research on Cognizin Citicoline and Setria Glutathione for cognitive and sports performance. -
Apr 08, 2025 
YouTube Video
enfinity® Paraxanthine Makes Life Cider X the ULTIMATE ACV Energy Revolution! #Paraxanthine #acv -
Apr 07, 2025 
Product News
Unmatched Supps Glutamine was created.
Category: Glutamine Powder -
Apr 07, 2025 
Product News
Unmatched Supps Longevity EAA was created.
Category: Essential Amino Acids -
Apr 07, 2025 
Blog Post
GHOST Vitamin C + Glutathione: Premium Antioxidant Protection Powered by Setria
GHOST Basics Vitamin C + Glutathione features Kyowa's Setria Glutathione to create a powerful antioxidant combo that enhances immune function and recovery. -
Apr 04, 2025 
Blog Post
Longevity Vitamin Renaissance: 3 Major Studies Reinforce MitoPrime Ergothioneine's Role in Healthspan
Research shows Ergothioneine is a potential longevity vitamin with powerful antioxidant benefits. MitoPrime offers the highest quality form for aging well. -
Apr 04, 2025 
Product News
Nootropics Depot L-Tryptophan was created.
Category: Tryptophan -
Apr 04, 2025 
Product News
Nootropics Depot L-Phenylalanine was created.
Category: Phenylalanine -
Apr 04, 2025 
Product News
Nootropics Depot DL-Phenylalanine was created.
Category: Phenylalanine -
Apr 04, 2025 
Product News
Nootropics Depot GABA was created.
Category: GABA -
Apr 04, 2025 
Product News
Nootropics Depot L-Arginine was created.
Category: L-Arginine -
Apr 04, 2025 
Product News
Nootropics Depot S-Phenylacetyl Glutathione was created.
Category: Glutathione -
Apr 02, 2025 
Product News
Nootropics Depot Reduced Glutathione was created.
Category: Glutathione -
Apr 02, 2025 
Product News
Nootropics Depot L-Citrulline DL-Malate was created.
Category: Citrulline Malate -
Apr 02, 2025 
Product News
Nootropics Depot L-Citrulline was created.
Category: Citrulline -
Mar 31, 2025 
YouTube Video
STOP CHOKING DOWN Apple Cider Vinegar - Try Life Cider X #LifeCiderX #acvbenefits #applecidervinegar -
Mar 26, 2025 
Product News
The Vitamin Shoppe TMG (Trimethylglycine) was created.
Categories: Betaine, Muscle Building Supplements -
Mar 26, 2025 
YouTube Video
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Mar 25, 2025 
Product News
Enhanced Labs EAA was created.
Category: Essential Amino Acids -
Mar 21, 2025 
YouTube Video
Ai Energy Formula UPDATED Already! Jack Owoc's Latest Tweaks to His Nootropic Energy Drink -
Mar 20, 2025 
Product News
Apollon Nutrition Chainsaw was created.
Categories: BCAA Powder, Electrolytes -
Mar 20, 2025 
Product News
Apollon Nutrition Glutamine was created.
Category: Glutamine Powder -
Mar 20, 2025 
Product News
Apollon Nutrition Over The Top was created.
Category: Intra Workout -
Mar 20, 2025 
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Double Wood Supplements Liposomal Glutathione was created.
Category: Glutathione -
Mar 20, 2025 
Product News
Apollon Nutrition ENIGMA was created.
Categories: Amino Acids, BCAA Powder -
Mar 18, 2025 
YouTube Video
Titan Nutrition Stim-Rush: High-Energy Pre-Workout Delivers 333mg Caffeine + Focus Enhancement -
Mar 18, 2025 
YouTube Video
Musclesport Pre Lean: Blending Essential Pre-Workout Staples w/ Old School & New School Innovations -
Mar 17, 2025 
Blog Post
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MitoPrime and SalidroPure work at the cellular level to boost energy production, protect against oxidative stress and enhance cognitive function without crashes -
Mar 16, 2025 
YouTube Video
Basic MASS: When Simple Nutrition Equals Serious Gains
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Amino Acid Price Alerts
The following price alerts are still active:
- Oct 29, 2025All American EFX AminoZorb Elite21 30 Servings (only Orange Splash, Pink Bubblegum, Sour Peach) dropped by 10.9% to $29.60 at NutritionFaktory.com
- Oct 29, 2025NuEthix Liposomal L-Carnitine 30 Servings dropped by 20% to $34.40 at NutritionFaktory.com
- Oct 28, 2025NutraBio BCAA 2500 250 Vcaps dropped by 16.7% to $23.99 at NutraBio
- Oct 28, 2025NutraBio L-Leucine 180 Vcaps dropped by 15.7% to $15.99 at NutraBio
- Oct 28, 2025NutraBio L-Leucine 500 Grams dropped by 6.9% to $29.99 at NutraBio
- Oct 28, 2025The Vitamin Shoppe Vthrive - Liquid Liposomal Glutathione 4 Oz. dropped by 20% to $31.99 at Vitamin Shoppe
- Oct 28, 2025Redcon1 Grunt 30 Servings (only Mango) dropped by 43.3% to $20.99 at Walmart
- Oct 28, 2025Ronnie Coleman Amino-Tone 30 Servings (only Sour Apple) dropped by 11.1% to $26.67 at Amazon
- Oct 27, 2025Nutrex EAA+ Hydration 30 Servings (only Apple Pear, Blood Orange, Blueberry Lemonade, Fruit Punch, It's Mango Time, Lemon Lime, Pink Lemonade, Strawberry Watermelon) dropped by 6.2% to $29.99 at Muscle and Strength
- Oct 27, 2025Nutrex EAA+ Hydration 30 Servings (only Maui Twist) dropped by 11.8% to $29.99 at Muscle and Strength
- Oct 27, 2025Optimum Nutrition Glutamine 240 Capsules dropped by 6.7% to $35.00 at Muscle and Strength
- Oct 27, 2025Ronnie Coleman L-Carnitine XS 3000 16 Oz. (only Mixed Berry) dropped by 44.5% to $14.99 at Muscle and Strength
- Oct 27, 2025Healthy Origins L-Glutathione Reduced (Setria) 150 Vcaps (only 500mg) dropped by 13.5% to $44.99 at Amazon
- Oct 27, 2025Nutricost L-Arginine 250 Grams dropped by 8.8% to $12.95 at Walmart
- Oct 26, 2025Irwin Naturals L-Arginine + Horny Goat Weed 75 Softgels dropped by 20% to $18.99 at iHerb.com
- Oct 26, 2025Source Naturals L-Tyrosine 100 Grams dropped by 18.4% to $11.09 at iHerb.com
- Oct 26, 2025Superior Source GABA 100 Tablets dropped by 9.9% to $10.25 at iHerb.com
- Oct 26, 2025Solaray L-Lysine 90 Tablets (only 333mg) dropped by 10% to $10.59 at iHerb.com
- Oct 26, 2025Source Naturals L-Carnosine 60 Tablets dropped by 11.1% to $20.89 at iHerb.com
- Oct 26, 2025Rule 1 Energized Amino 30 Servings (only Watermelon) dropped by 20% to $13.74 at iHerb.com
- Oct 26, 2025Swolverine Beta-Alanine 60 Servings dropped by 11.1% to $34.65 at iHerb.com
- Oct 26, 2025Source Naturals L-Carnitine 120 Capsules (only 500mg) dropped by 7% to $22.95 at iHerb.com
- Oct 26, 2025Vitacost Acetyl L-Carnitine HCl 120 Capsules dropped by 41% to $10.99 at VitaCost.com
- Oct 26, 2025NutraBio HMB 120 Vcaps dropped by 9.9% to $19.80 at NutraBio
- Oct 26, 2025Doctor's Best Glutathione + Milk Thistle 60 Vcaps dropped by 10.7% to $25.00 at iHerb.com
- Oct 25, 2025Universal Animal Juiced Aminos 30 Servings (only Orange) dropped by 7.8% to $27.99 at AllStarHealth
- Oct 25, 2025Source Naturals L-Lysine 200 Tablets (only 1000mg) dropped by 38.5% to $9.99 at Supplement Hunt
- Oct 24, 2025AllMax Nutrition Arginine HCI 400 Grams dropped by 10.3% to $34.94 at DPS Nutrition
- Oct 24, 2025AllMax Nutrition Aminocore BCAA 90 Servings (only Blue Raspberry, Fruit Punch, Pineapple Mango, Sweet Tea) dropped by 12.5% to $69.99 at Muscle and Strength
- Oct 24, 2025AllMax Nutrition Aminocore BCAA 90 Servings (only Watermelon) dropped by 22.2% to $69.99 at Muscle and Strength
- Oct 23, 2025Beverly International Quadracarn 120 Tablets dropped by 14.7% to $32.99 at AllStarHealth
- Oct 23, 2025Thorne Research Acetyl-L-Carnitine 60 Capsules dropped by 10% to $25.65 at iHerb.com
- Oct 23, 2025Thorne Research L-Glutamine 90 Capsules dropped by 10% to $20.52 at iHerb.com
- Oct 23, 2025Thorne Research PharmaGABA 60 Capsules (only 250mg) dropped by 10% to $47.88 at iHerb.com
- Oct 23, 2025Force Factor L-Carnitine 90 Tablets dropped by 15.6% to $15.19 at iHerb.com
- Oct 23, 2025Thorne Research PharmaGABA 60 Capsules (only 100mg) dropped by 10% to $26.50 at iHerb.com
- Oct 23, 2025Thorne Research Lysine 60 Capsules dropped by 10% to $11.97 at iHerb.com
- Oct 23, 2025Force Factor Acetyl L-Carnitine 100 Vcaps dropped by 18.3% to $11.39 at iHerb.com
- Oct 23, 2025Thorne Research Beta Alanine-SR 120 Tablets dropped by 10% to $39.33 at iHerb.com
- Oct 23, 2025Thorne Research Perfusia-SR 120 Capsules dropped by 10% to $35.91 at iHerb.com
- Oct 23, 2025Thorne Research Amino Complex 30 Servings dropped by 10% to $41.90 at iHerb.com
- Oct 23, 2025Thorne Research L-Glutamine 17.8 Oz. dropped by 10% to $53.86 at iHerb.com
- Oct 23, 2025Force Factor Glycine 100 Vcaps dropped by 20% to $7.58 at iHerb.com
- Oct 23, 2025Thorne Research Glycine 250 Capsules dropped by 10% to $24.80 at iHerb.com
- Oct 23, 2025Force Factor L-Tyrosine 120 Vcaps dropped by 20.1% to $6.83 at iHerb.com
- Oct 23, 2025Force Factor L-Taurine 180 Vcaps dropped by 19.9% to $7.59 at iHerb.com
- Oct 23, 2025Thorne Research Glutathione-SR 60 Capsules dropped by 10% to $43.60 at iHerb.com
- Oct 22, 2025NOW Acetyl L-Carnitine 100 Vcaps (only 500mg) dropped by 26.2% to $10.99 at Muscle and Strength
- Oct 22, 2025NOW L-Arginine 120 Tablets dropped by 6.6% to $13.99 at Muscle and Strength
- Oct 22, 2025LifeAid FitAid+ Recovery+ Drink 12 Cans (only Citrus Medley) dropped by 17% to $24.99 at Amazon
- Oct 21, 2025Ronnie Coleman L-Carnitine XS 4000 16 Oz. (only Apple Bomb) dropped by 36.2% to $19.99 at Muscle and Strength
- Oct 21, 2025Ronnie Coleman L-Carnitine XS 4000 16 Oz. (only Tropical Passion Fruit) dropped by 39.4% to $19.99 at Muscle and Strength
- Oct 21, 2025Ronnie Coleman L-Carnitine XS 3000 16 Oz. (only Wild Cherry) dropped by 26.9% to $14.99 at Muscle and Strength
- Oct 21, 2025GAT BCAAs 250 Grams dropped by 13% to $19.99 at Tiger Fitness
- Oct 21, 2025HD Muscle IntraHD 20 Servings (only Watermelon) dropped by 37.5% to $24.99 at Walmart
- Oct 20, 2025Xtend Original 90 Servings (only Blue Raspberry Ice, Watermelon Explosion) dropped by 7.1% to $45.49 at Muscle and Strength
- Oct 20, 2025Xtend Original 90 Servings (only Knockout Fruit Punch) dropped by 9% to $45.49 at Muscle and Strength
- Oct 20, 2025Nutrex L-Carnitine 1000 60 Capsules dropped by 15% to $17.00 at Campus Protein
- Oct 20, 2025VMI Sports L-Carnitine 1500 Heat Liquid 31 Servings (only Miami Vice) dropped by 11.4% to $21.25 at Campus Protein
- Oct 19, 2025Xtend Original 30 Servings (only Air Heads - Rainbow Berry, Italian Blood Orange, Knockout Fruit Punch) dropped by 10.5% to $23.80 at Cellucor.com
- Oct 19, 2025Equate Glycerin USP 6 Oz. dropped by 9% to $5.24 at Walmart
- Oct 19, 2025PrimaForce Beta-Alanine 200 Grams dropped by 7.8% to $11.79 at AllStarHealth
- Oct 19, 2025Nutrex L-Carnitine 1000 120 Capsules dropped by 20% to $19.99 at Walmart
- Oct 18, 2025GHOST BCAA 30 Servings (only Sour Strips Rainbow) dropped by 6.7% to $27.99 at Amazon
- Oct 17, 2025Rich Piana 5% Nutrition ALL DAY YOU MAY 30 Servings (only Watermelon) dropped by 8.5% to $34.97 at DPS Nutrition
- Oct 17, 2025EVLution Nutrition BCAA 5000 60 Servings dropped by 10% to $12.83 at iHerb.com
- Oct 17, 2025Swanson Acetyl L-Carnitine HCl 120 Vcaps dropped by 40% to $26.44 at iHerb.com
- Oct 16, 2025LifeAid FitAid+ Recovery+ Drink 1 Can dropped by 19.9% to $4.18 at Amazon
- Oct 16, 2025Xtend Original 90 Servings (only Italian Blood Orange) dropped by 16.4% to $49.99 at AllStarHealth
- Oct 16, 2025NutraKey L-Carnitine 3000 31 Servings (only Grape Crush) dropped by 8% to $22.99 at Tiger Fitness
- Oct 16, 2025Country Life L-Arginine Caps 100 Vcaps dropped by 11.1% to $10.71 at iHerb.com
- Oct 15, 2025Pro Supps Amino23 16 Servings (only Liquid Berry) dropped by 8.3% to $21.99 at Walmart
- Oct 14, 2025Doctor's Best L-Arginine Powder 300 Grams dropped by 12.4% to $14.79 at AllStarHealth
- Oct 14, 2025Podium Nutrition Beta-Alanine 60 Servings dropped by 25% to $14.99 at Podium Nutrition
- Oct 14, 2025VMI Sports L-Carnitine 3000 31 Servings (only Miami Vice) dropped by 8.2% to $22.03 at iHerb.com
- Oct 13, 2025Nutrex L-Arginine 1000 120 Capsules dropped by 9.2% to $19.99 at Muscle and Strength
- Oct 13, 2025MRM Beta-Alanine 200 Grams dropped by 9.1% to $17.99 at Amazon
- Oct 12, 2025JNX Sports The Curse! Beta-Alanine 100 Servings dropped by 20% to $10.56 at iHerb.com
- Oct 12, 2025Source Naturals Acetyl L-Carnitine 120 Tablets (only 500mg) dropped by 7.4% to $24.07 at iHerb.com
- Oct 12, 2025Source Naturals Acetyl L-Carnitine 60 Tablets (only 500mg) dropped by 7% to $12.91 at iHerb.com
- Oct 11, 2025Metabolic Nutrition T.A.G. 400 Grams (only Blue Raspberry, Green Apple) dropped by 14.3% to $29.99 at Tiger Fitness
- Oct 10, 2025Kaged Intra-Workout 20 Servings dropped by 9.1% to $29.99 at Amazon
- Oct 10, 2025RAW Nutrition Acetyl L-Carnitine 60 Capsules dropped by 15% to $21.25 at RAW Nutrition
- Oct 10, 20256AM Run FINISHLINE 50 Servings (only Lemon Lime) dropped by 16.7% to $49.99 at GNC
- Oct 08, 2025NOW L-Lysine 250 Vcaps dropped by 8.5% to $15.95 at Walmart
- Oct 07, 2025Musclesport BCAA Revolution 30 Servings (only PassionFruit) dropped by 8.8% to $30.99 at Natural Body Inc
- Oct 07, 2025Rich Piana 5% Nutrition ALL DAY YOU MAY 25 Servings (only Southern Sweet Tea (Caffeinated)) dropped by 16.7% to $39.99 at Natural Body Inc
- Oct 07, 2025NOW L-Lysine 250 Capsules dropped by 12.2% to $11.49 at AllStarHealth
- Oct 06, 2025Nutristat Amino Script 30 Servings dropped by 20% to $32.00 at NutritionFaktory.com
- Oct 06, 2025AllMax Nutrition Beta-Alanine 400 Grams dropped by 10.1% to $26.99 at Muscle and Strength
- Oct 06, 2025Force Factor GABA 100 Vcaps dropped by 7.5% to $21.99 at Muscle and Strength
- Oct 06, 2025BodyTech HMB + Vitamin D3 360 Capsules dropped by 21.1% to $48.72 at Vitamin Shoppe
- Oct 06, 2025Muscle Pharm Pro Series Endura-Drive 30 Servings (only Cherry Limeade) dropped by 33.3% to $25.03 at Vitamin Shoppe
- Oct 06, 2025Nutricost L-Lysine 250 Capsules (only 500mg as L-Lysine HCI) dropped by 7.1% to $14.95 at Walmart
- Oct 06, 2025Muscle Pharm Pro Series Endura-Drive 30 Servings (only Strawberry Watermelon) dropped by 47.3% to $25.03 at Vitamin Shoppe
- Oct 02, 2025Jarrow Formulas L-Tyrosine 500 100 Capsules dropped by 25.9% to $9.99 at AllStarHealth
- Oct 02, 2025AllMax Nutrition L-Carnitine + Tartrate 120 Capsules dropped by 32.8% to $12.09 at AllStarHealth
- Sep 28, 2025BSN AMINOx EAAs 25 Servings (only Jungle Juice) dropped by 16.7% to $24.99 at Amazon
- Sep 25, 2025Jarrow Formulas GABA Soothe 30 Vcaps dropped by 20% to $11.99 at AllStarHealth
- Sep 23, 2025Ronnie Coleman L-Arginine xs 100 Capsules dropped by 17.9% to $17.09 at iHerb.com
- Sep 17, 2025NOW L-Glutamine 454 Grams dropped by 7.6% to $19.99 at DPS Nutrition
- Sep 17, 2025NOW L-Tyrosine 90 Capsules dropped by 8.3% to $10.99 at DPS Nutrition
- Sep 17, 2025Rich Piana 5% Nutrition Core L-Citrulline 3000 60 Servings dropped by 11.9% to $24.65 at Rich Piana 5% Nutrition
- Sep 17, 2025Panda Supplements Aminos BCAA+EAA Hydration 30 Servings (only Peach Mango, Pink Lemonade) dropped by 10% to $36.00 at NFSupps.com (NutriFit)
- Sep 16, 2025Bucked Up essentials - Beta Alanine 300 Grams dropped by 9.7% to $15.29 at BuckedUp.com
- Sep 15, 2025Ronnie Coleman L-Arginine xs 180 Tablets dropped by 52.5% to $18.99 at Muscle and Strength
- Sep 12, 2025NOW Sports - Branched-Chain Amino Acids 240 Vcaps dropped by 8.7% to $20.99 at Amazon
- Sep 12, 2025iSatori L-Carnitine LS3 - 3000 16 Oz. (only Bombsicle) dropped by 7.4% to $24.99 at AllStarHealth
- Sep 11, 2025Apollon Nutrition ENIGMA 20 Servings (only Lychee Martini) dropped by 19.9% to $43.99 at DPS Nutrition
- Sep 11, 2025Core Nutritionals ABC 20 Servings (only Patriot Pop) dropped by 20% to $34.99 at Core Nutritionals
- Sep 10, 2025GHOST BCAA 30 Servings (only Sour Patch Kids Blue Raspberry) dropped by 20% to $22.40 at Ghost Lifestyle
- Sep 10, 2025GHOST BCAA 30 Servings (only Lemon Crush) dropped by 15.8% to $22.40 at Ghost Lifestyle
- Sep 08, 2025Gaspari Nutrition Liquid Carnitine 3000 32 Servings (only Orange Pineapple) dropped by 9.4% to $15.99 at DPS Nutrition
- Sep 08, 2025MHP Fit & Lean - Amino Hydration 30 Servings dropped by 33.3% to $39.99 at Muscle and Strength
- Sep 08, 2025FinaFlex Beta Alanine 150 Servings dropped by 7.1% to $25.99 at Tiger Fitness
- Sep 06, 2025EVLution Nutrition BCAA Energy 30 Servings (only Fruit Punch) dropped by 15.1% to $16.98 at Walmart
- Sep 06, 2025Jarrow Formulas L-Carnitine 50 Vcaps dropped by 9% to $21.78 at iHerb.com
- Sep 06, 2025Nutricost L-Carnitine Tartrate 60 Capsules dropped by 15.8% to $7.60 at iHerb.com
- Sep 06, 2025Nutricost BCAA (Capsules) 60 Capsules dropped by 11.7% to $7.12 at iHerb.com
- Sep 06, 2025Nutricost Taurine 30 Capsules dropped by 18.5% to $5.42 at iHerb.com
- Sep 06, 2025Nutricost Acetyl L-Carnitine 30 Capsules dropped by 22.1% to $6.65 at iHerb.com
- Sep 03, 2025Kaged BCAA 2:1:1 400 Grams dropped by 14.9% to $25.50 at Kaged.com
- Aug 31, 2025LifeAid FitAid+ Recovery+ Drink 12 Cans (only Strawberry Lemonade) dropped by 9.3% to $27.20 at Campus Protein
- Aug 31, 2025BodyTech Beta Alanine 5.1 Oz. dropped by 12.6% to $21.84 at iHerb.com
- Aug 29, 2025EVLution Nutrition BCAA Energy 30 Servings (only Rocket Pop) dropped by 20% to $16.98 at Walmart
- Aug 27, 2025BodyTech L-Citrulline 6.35 Oz. dropped by 15.2% to $23.74 at iHerb.com
- Aug 25, 2025Redcon1 Grunt 30 Servings (only Tigers Blood) dropped by 14.3% to $24.00 at AllStarHealth
- Aug 21, 2025Jarrow Formulas Glutathione Reduced 120 Vcaps dropped by 9.8% to $37.00 at AllStarHealth
- Aug 20, 2025Force Factor L-Carnitine 16 Oz. (only Liquid - Berry 3000mg) dropped by 21.7% to $17.99 at Muscle and Strength
- Aug 19, 2025Jarrow Formulas Arginine 100 Vegetarian Tablets dropped by 15% to $9.35 at AllStarHealth
- Aug 15, 2025Nitrogen Nutrition Primed Aminos 25 Servings dropped by 11.1% to $39.99 at Nitrogen Nutrition
- Aug 15, 2025NOW Acetyl L-Carnitine 90 Tablets dropped by 17.9% to $19.69 at AllStarHealth
- Aug 15, 2025Jarrow Formulas L-Carnitine 100 Vcaps (only 500mg) dropped by 6.5% to $28.99 at AllStarHealth
- Aug 15, 2025PEScience Amino IV 30 Servings (only Sour Green Apple) dropped by 15% to $25.50 at PEScience
- Aug 14, 2025GHOST Intra 20 Servings (only Orange Squeeze) dropped by 11.1% to $32.00 at Ghost Lifestyle
- Aug 13, 2025NOW L-Arginine 180 Tablets dropped by 7% to $19.99 at Muscle and Strength
- Aug 13, 2025NOW L-Ornithine 8 Oz. dropped by 12% to $22.00 at AllStarHealth
- Aug 10, 2025Carlson Glycine Powder 500 Grams dropped by 14.3% to $30.00 at AllStarHealth
- Aug 01, 2025GHOST BCAA 30 Servings (only Sour Patch Kids RedBerry) dropped by 6.6% to $22.40 at Ghost Lifestyle
- Aug 01, 2025GHOST Intra 20 Servings (only Blue Raspberry) dropped by 15.8% to $32.00 at Ghost Lifestyle
- Jul 31, 2025MRM HMB 1000 60 Capsules dropped by 12.2% to $22.01 at AllStarHealth
- Jul 30, 2025NOW L-Carnitine 50 Tablets dropped by 18.2% to $13.00 at AllStarHealth
- Jul 28, 2025Nutrex Lipo-6 Carnitine 60 Capsules (only Liquid) dropped by 28.5% to $20.00 at Muscle and Strength
- Jul 27, 2025Metabolic Nutrition T.A.G. 400 Grams (only Fruit Punch) dropped by 14.3% to $29.99 at Tiger Fitness
- Jul 25, 2025GHOST BCAA 30 Servings (only Sour Patch Kids Watermelon) dropped by 17% to $22.40 at Ghost Lifestyle
- Jul 20, 2025Solaray L-Lysine 120 Vcaps dropped by 18.1% to $7.00 at AllStarHealth
- Jul 16, 2025NOW L-Arginine 250 Vcaps dropped by 32.4% to $10.99 at Muscle and Strength
- Jul 15, 2025GHOST BCAA 30 Servings (only Kiwi Strawberry) dropped by 15.8% to $22.40 at Ghost Lifestyle
- Jul 04, 2025Ryse Supps L-Citrulline 150 Grams dropped by 10% to $22.50 at NFSupps.com (NutriFit)
- Jul 01, 2025Jarrow Formulas Taurine 100 Capsules dropped by 9.3% to $6.35 at AllStarHealth
- Jun 25, 2025NOW L-Citrulline 90 Vcaps dropped by 18.9% to $11.99 at Muscle and Strength
- Jun 20, 2025NOW L-Carnitine 180 Vcaps dropped by 15.3% to $28.79 at AllStarHealth
- Jun 11, 2025NOW Acetyl L-Carnitine 50 Vcaps dropped by 17.7% to $7.89 at AllStarHealth
- Jun 11, 2025Rich Piana 5% Nutrition 5% Aminos (Code Red Series) 20 Servings (only Italian Lemon Ice) dropped by 10.9% to $18.70 at Rich Piana 5% Nutrition
- Jun 11, 2025Rich Piana 5% Nutrition 5% Aminos (Code Red Series) 20 Servings (only Southern Sweet Tea) dropped by 15% to $18.70 at Rich Piana 5% Nutrition
- Jun 10, 2025NOW L-Leucine 255 Grams dropped by 8.5% to $23.69 at AllStarHealth
- Jun 08, 2025Musclesport BCAA Revolution 30 Servings (only Cherry Limeade, Mango Splash) dropped by 11.1% to $33.99 at Natural Body Inc
- May 31, 2025BODYSTRONG L-Carnitine Liquid 16 Oz. dropped by 20% to $13.59 at AllStarHealth
- May 31, 2025Rich Piana 5% Nutrition Liquid L-Carnitine 3150 32 Servings (only Mandarin Orange) dropped by 15% to $26.35 at Rich Piana 5% Nutrition
- May 31, 2025Nootropics Depot Acetyl L-Carnitine 90 Capsules dropped by 9.1% to $19.99 at Nootropics Depot
- May 29, 2025Rich Piana 5% Nutrition ALL DAY YOU MAY 10 Packets dropped by 15% to $25.50 at Rich Piana 5% Nutrition
- May 24, 2025VMI Sports L-Carnitine 3000 31 Servings (only Patriot Pop, Peach Mango) dropped by 7.7% to $23.99 at Natural Body Inc
- May 20, 2025Kaged Citrulline 200 Grams dropped by 20% to $19.99 at Kaged.com
- May 17, 2025NOW Glutathione 120 Vcaps (only 500mg) dropped by 29% to $23.99 at AllStarHealth
- May 15, 2025BodyTech Glutamine 100 Capsules dropped by 11.8% to $12.34 at iHerb.com
- May 05, 2025NOW Glutathione 30 Vcaps dropped by 11.5% to $11.49 at AllStarHealth
- May 05, 2025NOW Taurine 100 Vcaps (only 1000mg) dropped by 8% to $6.89 at AllStarHealth
- May 03, 2025The Vitamin Shoppe GABA 90 Tablets dropped by 13.6% to $18.99 at iHerb.com
- May 03, 2025The Vitamin Shoppe GABA 180 Tablets dropped by 18.6% to $28.49 at iHerb.com
- Apr 22, 2025BodyTech Glutamine 11.12 Oz. dropped by 12% to $23.74 at iHerb.com
- Apr 04, 2025Nootropics Depot Reduced Glutathione 60 Capsules dropped by 53.3% to $27.99 at Nootropics Depot
- Apr 02, 2025Nootropics Depot L-Carnosine 60 Grams dropped by 9.1% to $49.99 at Nootropics Depot
- Apr 02, 2025Nootropics Depot L-Carnosine 30 Grams dropped by 9.1% to $29.99 at Nootropics Depot
- Apr 02, 2025Nootropics Depot S-Acetyl L-Glutathione 180 Capsules dropped by 7.1% to $64.99 at Nootropics Depot
- Mar 30, 2025Metabolic Nutrition Tri-Pep 40 Servings (only Lemonade) dropped by 17.7% to $24.99 at AllStarHealth
- Mar 30, 2025PrimaForce Taurine 250 Grams dropped by 33.5% to $6.00 at AllStarHealth
- Mar 22, 2025Country Life L-Lysine 60 Chewables dropped by 15.8% to $11.99 at AllStarHealth
- Mar 21, 2025Country Life L-Tyrosine 100 Vcaps dropped by 8.3% to $10.99 at AllStarHealth
- Mar 21, 2025Country Life Max-Amino with B-6 180 Vcaps dropped by 7.1% to $25.99 at AllStarHealth
- Mar 07, 2025EVLution Nutrition BCAA Energy 30 Servings (only Blue Raz) dropped by 9.1% to $19.99 at AllStarHealth
- Mar 01, 2025NOW GABA 100 Vcaps (only 500mg) dropped by 11% to $6.49 at Muscle and Strength
- Feb 28, 2025KAL Ultra Lysine Lips 60 Tablets dropped by 20% to $9.99 at AllStarHealth
- Feb 27, 2025Spoken Nutrition Aminos + ATP 30 Servings dropped by 7.7% to $59.99 at VitaCost.com
- Feb 17, 2025Country Life Acetyl L-Carnitine 60 Vcaps dropped by 52.5% to $29.47 at VitaCost.com
- Feb 15, 2025Pro Supps L-Carnitine 1500 16 Oz. (only Berry) dropped by 18.6% to $17.00 at AllStarHealth
- Feb 14, 2025NOW L-Carnitine 60 Capsules dropped by 14.1% to $7.29 at AllStarHealth
- Jan 30, 2025Life Extension Glutathione, Cysteine & C 100 Capsules dropped by 10% to $14.85 at Best Price Nutrition
- Jan 29, 2025GU Roctane BCAA Capsules 60 Capsules dropped by 16.8% to $9.99 at AllStarHealth
- Jan 10, 2025NOW GABA 90 Chewables dropped by 16.7% to $10.49 at AllStarHealth
- Jan 03, 2025Magnum Nutraceuticals H.M.B. Hard Muscle Builder 90 Capsules dropped by 15.5% to $38.00 at Suppz.com
- Dec 31, 2024Olympian Labs Arginine & Ornithine 100 Capsules dropped by 10.8% to $18.01 at AllStarHealth
- Dec 19, 2024BSN AMINOx EAAs 25 Servings (only Watermelon Smash) dropped by 12.5% to $21.86 at iHerb.com
- Dec 18, 2024Leviathan Nutrition Liposomal Glutathione 30 Capsules dropped by 19% to $32.40 at NFSupps.com (NutriFit)
- Dec 13, 2024Condemned Labz Beta Alanine 240 Grams dropped by 50.1% to $9.99 at NutritionFaktory.com
- Nov 06, 2024VMI Sports L-Carnitine 3000 31 Servings (only Sour Candy, Strawberry Kiwi) dropped by 14.3% to $29.99 at Natural Body Inc
- Jun 09, 2024Solgar L-Lysine 100 Tablets dropped by 10.2% to $10.63 at iHerb.com
- May 30, 2024Doctor's Best L-Arginine - Sustained Plus Immediate Release 120 Tablets dropped by 6.2% to $14.99 at AllStarHealth
- May 09, 2024Nutricost L-Arginine 300 Capsules dropped by 10.2% to $16.11 at eSupplements
- Apr 17, 2024MRM L-Glutamine 325 Grams dropped by 15.7% to $15.17 at VitaCost.com
- Apr 17, 2024MRM Reduced Glutathione 60 Vcaps dropped by 34.8% to $23.99 at VitaCost.com
- Mar 04, 2024Source Naturals L-Leucine 120 Capsules dropped by 7.5% to $13.69 at VitaCost.com
- Mar 04, 2024Source Naturals L-Lysine (Free Form) 250 Tablets dropped by 8.7% to $14.69 at VitaCost.com
- Feb 18, 2024Source Naturals L-Proline L-Lysine 120 Tablets dropped by 9.8% to $12.99 at AllStarHealth
- Jan 10, 2024Nutricost L-Carnitine Tartrate 250 Grams dropped by 9% to $21.81 at eSupplements
- Jan 10, 2024PEScience Amino IV 60 Servings dropped by 9.1% to $42.50 at PEScience
- Sep 18, 2023NOW L-Glutamine 1000 Grams dropped by 14.1% to $33.49 at AllStarHealth
- Jun 22, 2023PEScience Amino IV 30 Servings (only Orange Dreamsicle) dropped by 15% to $25.50 at PEScience
- May 03, 2022Source Naturals GABA 90 Capsules dropped by 40% to $12.59 at VitaCost.com
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Aug 30, 2025Nutristat PÜRPEPTIDE: Why PeptoPro Peptides Work When Other Aminos Don't
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Aug 13, 2025Nutrabolt C4 Alpha Bomb: The Pre-Workout with Deuterated Caffeine
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May 30, 2025C4 x Jolly Rancher Pre-Workout: Do Candy Flavors Actually Work?
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May 29, 2025Ghost Greens Iced Tea Lemonade Returns for Summer 2025
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May 20, 2025Does Taurine Really Cause Cancer? The REAL Facts
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May 01, 2025This TROPICAL AMINO FORMULA Is Flying Off Shelves! | Musclesport Miami Sunrise REVIEW
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